Ink Cartridge / Tank Related Problems - Brother MFC Series Service Manual

4.10.4 Ink cartridge / tank related problems

<User Check>
- Check if an incompatible ink cartridge is loaded.
- Reload the Ink cartridge.
- During initialization, check if the Ink cartridge is not set before the instruction to do so.
Step
1 Ink sensor flat cable
connection failure
Each Ink cartridge sensor,
2
Ink remaining sensor, Ink
cartridge detection sensor,
or IC chip PCB defective
3 Main PCB defective
Cause
Reconnect the Ink sensor flat cable.
Replace the Ink refill ASSY.
Replace the Main PCB ASSY.
2-76
Solution
Confidential